[mythtv-users] whats the best graphics card for HD playback?

[Michael T. Dean]

On 01/23/2006 02:21 PM, Adam Propeck wrote:
> Jared, What are you displaying on? I'm jealous. I really like my 720p 
> native LCD projector, but 1080p.... dang!
To answer for him:

http://www.gossamer-threads.com/lists/mythtv/users/169614#169614

And, I have to say that 1080p looks great on my Samsung DLP 
(HL-R6768W).  I told myself I wouldn't buy an HDTV that wasn't HD--i.e 
that did only 1280x720 when the ATSC spec allows 1920x1080.  However, 
now that I got the 1080p TV, I'm thinking that--even though the ATSC 
spec won't add higher resolutions--manufacturers may, in fact, create 
even higher resolution TV's, anyway...

Although a 1080p TV can do dot-for-dot display of a 1920x1080 image 
(i.e. 1:1 pixel mapping), sampling theory says that given a certain 
sampling resolution (i.e. 1920x1080), displaying the image at full 
quality requires an even higher output resolution.  I didn't realize 
this until I tried to figure out why 720p looks even better on my TV 
than on 720p-native TV's at 1:1 pixel mapping.  Before, I thought the 
1080p TV would give me "perfect" 1080i/p and that 720p would look only 
slightly worse than on a 720p set because of the scaling--I guess I had 
forgotten the 2-pixels-per-dot rule of thumb I used to use for printing 
images.  Even though I don't have 2-pixels-per-dot for 720p, I'm much 
closer to it for 720p than for 1080p ;).  Oh, and NTSC DVD's look 
astounding on the TV (where I've got 2 pixels per dot and then some).  :)

Mike